Intermittent positive and negative printing press capable of being quickly switched

Abstract

The invention relates to the technical field of intermittent positive and negative printing press devices, in particular to a rapidly-switchable intermittent positive and negative printing press which comprises a positive and negative printing device. The device further comprises a printing pressure adjusting device and an anilox roller pressure adjusting device, the printing pressure adjusting device is arranged in the front and back printing device, the anilox roller pressure adjusting device is installed on the left side of the printing pressure adjusting device, the printing pressure adjusting device and the anilox roller pressure adjusting device are in transmission connection, and the printing pressure adjusting device comprises a pressure adjusting hand wheel. The pressure adjusting hand wheel is arranged on the front and back printing device, the movable end of the pressure adjusting hand wheel is connected with a combined pressing hand wheel, the movable end of the combined pressing hand wheel is in transmission connection with a second gear, a magnetic hob is arranged in the second gear and installed on the printing pressure adjusting device, and the outer side of the second gear is in transmission connection with a third gear; according to the invention, a turnover device or a special back printing press is not added to adjust printing parameters or layout, so that the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of intermittent recto-reverse printing press devices, in particular to an intermittent recto-reverse printing press capable of rapid conversion. Background Art

[0002] The intermittent flexographic printing press is a highly efficient printing equipment. It also has high-precision printing capabilities. It adopts a high-precision two-axis positioning system and servo control system, which can achieve millimeter-level printing accuracy and ensure the stability and consistency of printed products. In addition, the intermittent flexographic printing press can also print a variety of colors and patterns, including complex images and texts, making the printed products more colorful and meeting the personalized needs of customers.

[0003] Existing intermittent flexographic printing machines can only print on one side and cannot change the other side. They need a flipping device or a special back-printing machine to adjust the printing parameters or layout, which increases the difficulty and cost of operation, and has relatively high technical requirements for printing workers, greatly reducing printing efficiency.

[0004] Therefore, in order to solve the problem that printing can only be done on one side and one brush side cannot be changed, a flipping device or a special back-printing printer is needed to adjust the printing parameters or layout, which increases the difficulty and cost of operation, and has relatively high technical requirements for printing workers, greatly reducing printing efficiency, an intermittent positive and negative printing printer with fast conversion can be designed. Summary of the invention

[0005] In order to overcome the problem of being able to print on only one side and not being able to change the other side, a flipping device or a special back-printing press is needed to adjust the printing parameters or layout, which increases the difficulty and cost of operation, and also places relatively high technical requirements on printing workers, greatly reducing the problem of printing efficiency.

[0006] The technical solution of the present invention is: an intermittent positive and negative printing machine that can be quickly converted, including a positive and negative printing device; also including a printing pressure regulating device and an anilox roller pressure regulating device, the printing pressure regulating device is arranged inside the positive and negative printing device, the anilox roller pressure regulating device is installed on the left side of the printing pressure regulating device, and the printing pressure regulating device and the anilox roller pressure regulating device are transmission-connected, the printing pressure regulating device includes a pressure regulating hand wheel, the pressure regulating hand wheel is arranged on the positive and negative printing device, the movable end of the pressure regulating hand wheel is connected to a pressure hand wheel, the movable end of the pressure hand wheel is transmission-connected to gear two, a magnetic roller is arranged inside gear two, and the magnetic roller is installed on the printing pressure regulating device, and the outer side of gear two is transmission-connected to gear three.

[0007] Preferably, the pressure regulating hand wheel is rotated to mesh gear two and gear three, and after plate mounting, the ink fountain adjusting screw is rotated to move the ink fountain so that the ink transfer roller is tangent to the anilox roller, and the scraper adjusting screw is rotated to connect the scraper to the anilox roller.

[0008] Preferably, the right side of gear three is transmission-connected with an anilox roller, the outer side of the anilox roller is movably connected with a knife-sticking plate, and the outer sides of gear two and gear three are movably connected with a knife-sticking plate.

[0009] Preferably, a scraper is movably connected to the lower part of the outer side of the anilox roller, a bottom roller is arranged inside the gear three, and the bottom roller is arranged on the front and back printing device.

[0010] Preferably, an ink transfer roller is transmission-connected to the lower part of the outer side of the anilox roller, a gear four is transmission-connected to the outer side of the gear three, and an anilox roller mounting seat is provided at the outer bottom end of the ink transfer roller.

[0011] Preferably, the right side of the anilox roller mounting seat is threadedly connected with an ink fountain adjusting screw, and the input end of gear four is connected with a motor.

[0012] Preferably, the anilox roller pressure regulating device comprises a gear 1, which is transmission-connected to the movable end of the pressure hand wheel, and a scraper is movably connected to the outer side of the gear 1, and a scraper quick-release screw is threadedly connected to the top of the scraper.

[0013] Preferably, the left end of the scraper is threadedly connected with a scraper adjusting screw, the top of the scraper is installed with an ink fountain, and the back side of the ink fountain is threadedly connected with an anilox roller adjusting screw.

[0014] Preferably, a base paper peeling assembly is installed on the left side of the front and back printing device, a reversible UV assembly is arranged on the right side of the front and back printing device, and a base paper laminating assembly is arranged on the right side of the reversible UV assembly.

[0015] The beneficial effects of the present invention are as follows: the magnetic roller is made tangent to the bottom roller by rotating the pressing hand wheel, and the double-sided adhesive is attached to the printing plate along the zero line on the plate-mounting iron sheet, and the conversion of the printing surface is completed by the interchange of the magnetic roller and the bottom roller, thereby avoiding the need to add a turning device or a special back-printing printing machine to adjust the printing parameters or the layout, reducing the difficulty and cost of operation, greatly improving the production efficiency, and enabling printing companies to complete more printing tasks in a shorter time, while being able to achieve millimeter-level printing accuracy, ensuring the stability and consistency of the printed products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the structure of a fast-convertible intermittent recto-reverse printing machine of the present invention;

[0017] Figure 2 Shown is a schematic diagram of the internal structure of the intermittent recto-reverse printing machine capable of rapid conversion according to the present invention.

[0018] Explanation of the reference numerals: 1. positive and negative printing device; 2. printing pressure regulating device; 201. pressure regulating hand wheel; 202. closing pressure hand wheel; 203. gear two; 204. magnetic roller; 205. gear three; 206. anilox roller; 207. knife skin plate; 208. scraper; 209. bottom roller; 210. ink transfer roller; 211. gear four; 212. ink fountain adjustment screw; 213. motor; 214. anilox roller mounting seat; 301. gear one; 302. scraper quick release screw; 303. scraper adjustment screw; 304. anilox roller adjustment screw; 305. ink fountain; 3. anilox roller pressure regulating device; 4. base paper peeling assembly; 5. reversible UV assembly; 6. base paper laminating assembly. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] See also Figure 1 - Figure 2 The present invention provides an embodiment: an intermittent positive and negative printing machine capable of rapid conversion, comprising a positive and negative printing device 1; further comprising a printing pressure regulating device 2 and an anilox roller pressure regulating device 3, wherein the printing pressure regulating device 2 is arranged inside the positive and negative printing device 1, the anilox roller pressure regulating device 3 is installed on the left side of the printing pressure regulating device 2, and the printing pressure regulating device 2 and the anilox roller pressure regulating device 3 are transmission-connected, the printing pressure regulating device 2 comprises a pressure regulating hand wheel 201, the pressure regulating hand wheel 201 is arranged on the positive and negative printing device 1, the movable end of the pressure regulating hand wheel 201 is connected to a pressure hand wheel 202, the movable end of the pressure hand wheel 202 is transmission-connected to a gear 2 203, a magnetic roller 204 is arranged inside the gear 203, and the magnetic roller 204 is installed on the printing pressure regulating device 2, and the outer side of the gear 2 203 is transmission-connected to a gear 3 205.

[0021] See also Figure 2In this embodiment, the right side of the gear three 205 is connected to the anilox roller 206 in a transmission manner, and the outer side of the anilox roller 206 is movably connected to the knife-attaching leather plate 207, and the outer sides of the gear two 203 and the gear three 205 are movably connected to the knife-attaching leather plate 207; the outer side of the anilox roller 206 is movably connected to the scraper 208, and the gear three 205 is provided with a bottom roller 209, and the bottom roller 209 is provided on the positive and negative printing device 1; the outer side of the anilox roller 206 is connected to the ink transfer roller 210 in a transmission manner, and the outer side of the gear three 205 is connected to the gear four 211, and the outer bottom end of the ink transfer roller 210 is provided with an anilox roller mounting seat 214; the right side of the anilox roller mounting seat 214 is threadedly connected to the ink fountain adjusting screw 212, and the input end of the gear four 211 is connected to the motor 213; the anilox roller pressure regulating device 3 includes a gear one 301, which is connected to the movable end of the pressure hand wheel 202 in a transmission manner, and the outer side of the gear one 301 The side of the printing device 1 is movably connected with a scraper 208, and the top of the scraper 208 is threadedly connected with a scraper quick-release screw 302; the left end of the scraper 208 is threadedly connected with a scraper adjustment screw 303, and the top of the anilox roller mounting seat 214 is installed with an ink fountain 305, and the back side of the ink fountain 305 is threadedly connected with an anilox roller adjustment screw 304; the left side of the front and back printing device 1 is installed with a base paper peeling component 4, and the right side of the front and back printing device 1 is provided with a reversible UV component 5, which can be A base paper laminating component 6 is arranged on the right side of the inverted UV component 5. During forward printing, the magnetic roller 204 is placed above the bottom roller 209. During reverse printing, the bottom roller 209 is placed above the magnetic roller 204. The pressure regulating hand wheel 201 is rotated to make gear two 203 and gear three 205 mesh. After laminating, the ink fountain adjusting screw 212 is rotated to move the ink fountain 305 so that the ink transfer roller 210 is tangent to the anilox roller 206. The scraper adjusting screw 303 is rotated to connect the scraper 208 with the anilox roller 206.

[0022] During forward printing, the magnetic roller 204 is placed above the bottom roller 209. During reverse printing, the bottom roller 209 is placed above the magnetic roller 204. The pressure regulating hand wheel 201 is rotated to make the gear 2 203 and the gear 3 205 mesh. After the plate is attached, the ink fountain adjusting screw 212 is rotated to move the ink fountain 305 so that the ink transfer roller 210 is tangent to the anilox roller 206. The scraper adjusting screw 303 is rotated to connect the scraper 208 with the anilox roller 206. The anilox roller adjusting screw 304 is rotated to mesh the gear 1 301 with the gear 2 203. The anilox roller 206 is The magnetic roller 204 is tangent to each other, and the printing material is passed between the magnetic roller 204 and the bottom roller 209. The pressing hand wheel 202 is rotated to make the magnetic roller 204 tangent to the bottom roller 209, and the printing plate is attached along the zero line on the plate-mounting iron sheet with double-sided tape. The reference line of the magnetic roller 204 is placed above the roller board 207, and the zero line of the plate-mounting iron sheet is aligned with the reference line of the magnetic roller 204. After the magnetic force attracts one end of the plate-mounting iron sheet, the magnetic roller 204 can be rotated to adsorb the remaining plate-mounting iron sheet onto the magnetic roller 204.

[0023] Through the above steps, the magnetic roller 204 is made tangent to the bottom roller 209 by rotating the pressing hand wheel 202, and the printing plate is attached along the zero line on the plate-attaching iron sheet with double-sided tape. The conversion of the printing surface is completed by the interchange of the magnetic roller 204 and the bottom roller 209, thereby avoiding the need to add a flipping device or a special back-printing printer to adjust the printing parameters or layout, reducing the operation difficulty and cost; to solve the problem that printing can only be done on one side, one brush surface cannot be changed, a flipping device or a special back-printing printer is needed to adjust the printing parameters or layout, which increases the operation difficulty and cost, and the technical requirements for printing workers are relatively high, which greatly reduces the printing efficiency.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A fast-convertible intermittent recto-reverso printing machine, comprising a recto-reverso printing device (1); characterized in that: The invention also comprises a printing pressure regulating device (2) and an anilox roller pressure regulating device (3). The printing pressure regulating device (2) is arranged inside the front and back printing device (1). The anilox roller pressure regulating device (3) is installed on the left side of the printing pressure regulating device (2). The printing pressure regulating device (2) and the anilox roller pressure regulating device (3) are connected in a transmission manner. The printing pressure regulating device (2) comprises a pressure regulating hand wheel (201). The pressure regulating hand wheel (201) is arranged on the front and back printing device (1). The movable end of the pressure regulating hand wheel (201) is connected to a pressure closing hand wheel (202). The movable end of the pressure closing hand wheel (202) is connected in a transmission manner to a second gear (203). A magnetic roller (204) is arranged inside the second gear (203). The magnetic roller (204) is installed on the printing pressure regulating device (2). The outer side of the second gear (203) is connected in a transmission manner to a third gear (205).

2. The intermittent fast-convertible recto-reverso printing press according to claim 1, characterized in that: The right side of the gear three (205) is connected to the anilox roller (206) in a transmission manner, the outer side of the anilox roller (206) is movably connected to the knife skin plate (207), and the outer sides of the gear two (203) and the gear three (205) are movably connected to the knife skin plate (207).

3. The intermittent fast-convertible recto-reverso printing press according to claim 2, characterized in that: A scraper (208) is movably connected to the lower part of the outer side of the anilox roller (206), a bottom roller (209) is arranged inside the gear three (205), and the bottom roller (209) is arranged on the front and back printing device (1).

4. The intermittent fast-convertible recto-reverso printing press according to claim 2, characterized in that: The lower part of the outer side of the anilox roller (206) is transmission-connected to an ink transfer roller (210), the outer side of the gear three (205) is transmission-connected to a gear four (211), and the outer bottom end of the ink transfer roller (210) is provided with an anilox roller mounting seat (214).

5. The intermittent recto-reverso printing press capable of rapid conversion according to claim 4, characterized in that: The right side of the anilox roller mounting seat (214) is threadedly connected to an ink fountain adjusting screw (212), and the input end of the gear four (211) is connected to a motor (213).

6. The intermittent fast-convertible recto-reverso printing press according to claim 1, characterized in that: The anilox roller pressure regulating device (3) comprises a gear 1 (301), the gear 1 (301) is transmission-connected to the movable end of the pressure hand wheel (202), and the outer side of the gear 1 (301) is movably connected to a scraper (208), and the top end of the scraper (208) is threadedly connected to a scraper quick-release screw (302).

7. The intermittent fast-convertible recto-reverso printing press according to claim 6, characterized in that: The left end of the scraper (208) is threadedly connected to a scraper adjusting screw (303), the top of the anilox roller mounting seat (214) is mounted with an ink fountain (305), and the back side of the ink fountain (305) is threadedly connected to anilox roller adjusting screw (304).

8. The intermittent fast-convertible recto-reverso printing press according to claim 1, characterized in that: A base paper peeling component (4) is installed on the left side of the front and back printing device (1), a reversible UV component (5) is arranged on the right side of the front and back printing device (1), and a base paper laminating component (6) is arranged on the right side of the reversible UV component (5).

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